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  <title>Document</title>
  
  <style>
    /* 设计给的375的设计稿*/
    /* 1vw = 3.75px */
    /* 手动计算 */
    /* .box{
      width: 26.6667vw;
      height: 26.6667vw;
      background-color: orange;
    } */

    /* less混入 */
   
  </style>

  <link rel="stylesheet/less" href="less/05-pxToVw.less">
  <script src="js/lessc.js"></script>
 
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  <div class="box"></div>
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